Most modern gas fireplaces and inserts are direct vent (DV) systems. These units have a sealed glass front that separates the combustion process from your living space. All combustion air is drawn from outside the home through a coaxial vent pipe, while exhaust gases are safely expelled through an inner pipe.
Direct vent systems help maintain indoor air quality and can be vented either horizontally through an exterior wall or vertically through the roof, depending on your home’s layout.

Important: Always remove the glass front before lighting the pilot.

Basic steps:

1. Locate and open the gas supply valve.
2. Find the pilot assembly and igniter inside the firebox.
3. Turn the valve control knob to the PILOT position and press it in.
4. While holding the knob, press the igniter button until the pilot lights.
5. Continue holding the knob for 30 seconds, then release.
6. If the pilot stays lit, turn the knob to ON, replace the glass securely, and turn the unit on using the switch or remote.

If the pilot won’t stay lit, turn off the gas and contact HAMCO for service.

Note: Some units use electronic ignition and do not require manual pilot lighting.

Glass removal methods vary by model. Always refer to your installation manual or owner’s guide for specific instructions.

Gas fireplace glass becomes extremely hot during operation. Use caution at all times:

• Supervise children closely
• Do not operate without protective barriers
• Keep combustible items such as furniture, clothing, and drapes at a safe distance

In high-humidity climates, leaving the pilot on is often recommended. Otherwise, you may turn it off if the fireplace won’t be used for an extended period. When needed, follow the manufacturer’s instructions to relight it safely.

No. Direct vent systems offer flexible installation options. Venting can run horizontally through an exterior wall or vertically through the roof. HAMCO can help determine the best venting solution for your home’s layout.

Proper glass cleaning is essential, especially after the first 10 continuous hours of use, as residue can permanently etch the glass if left untreated.

• Ensure the fireplace is completely cool and the gas is turned off.
• Remove the front trim or louvers and carefully take out the glass assembly according to your manual.
• Clean both sides using a soft cloth with non-ammonia glass cleaner or white vinegar.
• For heavier buildup, use a gas fireplace–approved glass cleaner recommended by your dealer.
• Reinstall the glass securely before operating the fireplace again.

Clean the glass as needed afterward, especially when adding new ember material. Never use abrasive cleaners or cloths.